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Finding the Fourth Proportional to 5,505.70, 8,250.70 and 2,729.63

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Solution

The fourth proportional to 5,505.70, 8,250.70 and 2,729.63 is: 4,090.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,505.70 : 8,250.70 = 2,729.63 : x
  2. Step 2: Convert to fraction form
    5,505.70/8,250.70 = 2,729.63/x
  3. Step 3: Cross multiply
    5,505.70x = 8,250.70 × 2,729.63
  4. Step 4: Simplify right side
    5,505.70x = 22,521,358.24
  5. Step 5: Solve for x
    x = 22,521,358.24/5,505.70
  6. Step 6: Final answer
    x = 4,090.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.